CN203509259U - Ultrasonic vibration micro electric spark machining working table - Google Patents
Ultrasonic vibration micro electric spark machining working table Download PDFInfo
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- CN203509259U CN203509259U CN201320573028.5U CN201320573028U CN203509259U CN 203509259 U CN203509259 U CN 203509259U CN 201320573028 U CN201320573028 U CN 201320573028U CN 203509259 U CN203509259 U CN 203509259U
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- electric spark
- ultrasonic vibration
- working table
- spark machining
- piezoelectric ceramic
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Abstract
The utility model belongs to an ultrasonic vibration micro electric spark machining working table. The ultrasonic vibration micro electric spark machining working table comprises a machine tool base (6), a power supply (7), a regulating resistor (8) and a work liquid trough (11); the ultrasonic vibration micro electric spark machining working table is characterized by further comprising a pre-tensioning spring (4), piezoelectric ceramic (5), a piezoelectric brake shell (9) and a pushing rod (10); the piezoelectric ceramic (5) is in a stacking and pressing combination type and is connected mutually in parallel in a circuit; the piezoelectric ceramic (5) serves as a micro vibration excitation component converting electricity into mechanical vibrational energy; under action of a voltage, the inverse piezoelectric effect of the piezoelectric ceramic is utilized, and the piezoelectric ceramic drives the working table top to stretch or retract. When electric spark machining is conducted, by means of ultrasonic vibration of a workpiece, the ultrasonic vibration micro electric spark machining working table effectively improves the circulation state of work liquid, prompts discharging of electric corrosion products, enhances stability in a machining procedure, can automatically eliminate the phenomena of a short circuit, arc discharge and the like, and is particularly suitable for machining deep micro holes and deep grooves.
Description
Technical field:
The utility model belongs to Micro-EDM Machining Technology field, relates to a kind of ultrasonic vibration fine electric spark processing work platform.
Background technology:
Equipment is simple, controllability good owing to having for Micro-EDM Machining Technology, without the series of advantages such as cutting force, applicability is strong, in the processing of miniature scale part, have huge superiority, in the microfabrication of micro element, there is very large application potential.At industrial existing multiple Micro Edm Machine Tools, come into operation at present, Micro Edm Machine Tools MG-the ED82W of PANASONIC essence machine Development and Production, adopt the micro-energy of the RC relaxation formula pulse power, and by the timing rollback of tool-electrode, can stablize micropore and the narrow groove of processing 10 μ m yardsticks.Domestic aspect, Nanjing Aero-Space University adopts the micro-feeding mode of Piezoelectric Ceramic tool-electrode successfully to process
minute aperture, the four-axle linked precise and tiny electric spark machine tool of Harbin Institute of Technology special process Research Institute success, and having gone out with this machine tooling
micropore.Existing Micro Edm Machine Tools all adopts fixedly workpiece to be machined of chatter-free operation platform, and the feeding by tool-electrode realizes microfabrication.Because processing yardstick is less, tool-electrode is trickle, discharge pulse energy and discharging gap are little, timing rollback in tradition spark machined rushes liquid chip removal mode and has been unsuitable for fine electric spark processing, cause galvanic corrosion product to be difficult for discharging from processing district, the minute aperture of especially high aspect ratio or profiled holes chip removal are more difficult, easily occur short circuit arcing phenomenon, and working (machining) efficiency is extremely low.
Utility model content:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and the ultrasonic vibration fine electric spark processing work platform that a kind of machining state is stable, process velocity is high, chip removal is effective is provided.
The utility model is achieved in the following ways:
A ultrasonic vibration fine electric spark processing work platform, comprises lathe base, work tank, power supply, regulating resistance; It is characterized in that also comprising preloading spring, piezoelectric ceramics, piezo-activator shell, push rod; Piezoelectric ceramics adopts and laminates combining form, in circuit, is connected in parallel to each other; Piezo-activator shell is fixed on lathe base, and piezoelectric ceramics is arranged in piezo-activator shell; Push rod is connected with piezoelectric ceramics by preloading spring, and push rod upper end is connected with work tank; Processing work is fixed in work tank.
Above-mentioned ultrasonic vibration fine electric spark processing work platform, is characterized in that piezoelectric ceramics, as micro-vibrational excitation member, is mechanical vibrational energy by electric energy conversion; Under voltage effect, utilize the inverse piezoelectric effect of piezoelectric ceramics, piezoelectric ceramics drives work top to elongate or shorten, and its distance elongating or shortening and voltage are approximated to direct ratio.
Above-mentioned ultrasonic vibration fine electric spark processing work platform, is characterized in that power supply is transistor ultrasonic power, frequency range 10KHz-60KHz.
The beneficial effects of the utility model are as follows:
Outstanding advantages of the present utility model is effectively to improve working solution recurrent state in fine electric spark processing, promotes the discharge of galvanic corrosion product, has increased the stability of process.Because piezoelectric ceramics is at every turn flexible, workpiece is all made stretching motion under the driving of piezoelectric ceramics, make tool-electrode and workpiece produce relative motion, relative motion acts on liquid medium can produce disturbance, form perturbation wave, perturbation wave impacts galvanic corrosion product and makes its dispersion, then perturbation wave runs into workpiece and reflects to form upper and lower pressure differential, galvanic corrosion product will be under the pump-absorb action of pressure differential and piston (tool-electrode), from processing discharging gap, discharge, can effectively avoid the deposition of galvanic corrosion product like this, be conducive to the transfer of point of discharge, thereby can increase substantially the stability of processing.In addition, when completing spark discharge processing work to shrink with piezo-activator, during rollback, can also make medium deionization fast, control Single Pulse Discharge energy.The piezoelectric ceramics that this ultrasonic vibration fine electric spark processing work platform adopts is Multi-stacking compaction structure, has good dynamic and static characteristic, its resolution 0.45nm, and when 100V, its stroke reaches 45 μ m.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
In figure: the grand moving axis of 1-, 2-rotary main shaft, 3-processing work, 4-preloading spring, 5-piezoelectric ceramics, 6-lathe base, 7-power supply, 8-regulating resistance, 9-piezo-activator shell, 10-push rod, 11-work tank, 12-tool-electrode, 13-tool-electrode chuck.
The specific embodiment:
Below in conjunction with accompanying drawing, provide three most preferred embodiments of the present utility model:
Embodiment mono-:
As shown in Figure 1, the utility model is a kind of ultrasonic vibration fine electric spark processing work platform of using based on Micro Edm Machine Tools, comprises preloading spring 4, piezoelectric ceramics 5, lathe base 6, power supply 7, regulating resistance 8, piezo-activator shell 9, push rod 10, work tank 11.When processing work 3 quality hour, dynamic following effect is better, ultrasonic vibration fine electric spark processing work platform can adopt high frequency ultrasound vibration, frequency range is at 38KHz-42KHZ, processing work adopts bolt to be pressed abd fixed in work tank 5, and immerses in working solution, and processing effect is better.The sheet number that piezoelectric ceramics 5 laminates is three.Piezo-activator shell 9 plays protection piezoelectric ceramics 5, adopts corrosion resistant stainless steel manufacture, and concrete size is determined according to the size of piezoelectric ceramics 5 and push rod 10.Power supply 7 is transistor ultrasonic power, frequency range 10KHz-60KHz.Preloading spring 4 adopts standard spring, plays a part to compress piezoelectric ceramics 5 in device, and its size is determined according to piezoelectric ceramics 5.Regulating resistance 8 is connected in the drive circuit of piezoelectric ceramics 5, can change the amount of elongating or shortening of piezoelectric ceramics 5 by regulating resistance 8, thereby changes the Oscillation Amplitude of ultrasonic vibration fine electric spark processing work platform.
The process of utilizing above-mentioned ultrasonic fine electric spark processing work platform to carry out spark machined is as described below:
(1) first ultrasonic vibration fine electric spark processing work platform is fixed on Micro Edm Machine Tools, uses T-shaped bolt tightening.
(2) secondly workpiece 3 is fixed in the work tank 11 of ultrasonic fine electric spark processing platform, inject working solution, workpiece is immersed in working solution, regulate processing platform to make workpiece 3 under tool-electrode 12, grand moving axis 1 drives tool-electrode 12 feedings afterwards, makes tool-electrode 12 and processing work 3 have suitable discharging gap;
(3) then switch on power 7, power supply 7 output voltage waveforms are sinusoidal wave, piezoelectric ceramics 5 chargings when the front half period, and piezoelectric ceramics 5 starts to extend under inverse piezoelectric effect, wherein extends during 1/4th cycles maximum; Power supply 7 output voltages are when the later half cycle, and piezoelectric ceramics 5 starts to shorten under inverse piezoelectric effect, and wherein shift shortens is maximum during 3/4ths cycles.In this course, piezoelectric ceramics 5 drives work tank 11 and workpiece 3 motions by push rod 10.When processing work 3 quality are when larger, dynamic following effect is not so good, and ultrasonic vibration fine electric spark processing work platform should adopt low frequency ultrasound vibration, and frequency range is at 18KHz-22KHZ.
Embodiment bis-:
As shown in Figure 1, when carrying out roughing, the sheet number that piezoelectric ceramics 5 laminates is five, to obtain larger working (machining) efficiency.Other is with embodiment mono-.
Embodiment tri-:
As shown in Figure 1, when processing work 3 sizes hour, machinery is fixing more difficult, processing work 3 adopts bonding modes to be fixed in work tank 5, and immerses in working solution, after machining, by organic solvent dissolution, takes off workpiece.Other is with embodiment mono-.
Claims (2)
1. a ultrasonic vibration fine electric spark processing work platform, comprises lathe base (6), power supply (7), regulating resistance (8), work tank (11); It is characterized in that also comprising preloading spring (4), piezoelectric ceramics (5), piezo-activator shell (9), push rod (10); Piezoelectric ceramics (5) adopts and laminates combining form, in circuit, is connected in parallel to each other; It is upper that piezo-activator shell (9) is fixed on lathe base (6), and piezoelectric ceramics (5) is arranged in piezo-activator shell (9); Push rod (10) is connected with piezoelectric ceramics (5) by preloading spring (4), and push rod (10) upper end is connected with work tank (11).
2. a kind of ultrasonic vibration fine electric spark processing work platform according to claim 1, is characterized in that power supply (7) is transistor ultrasonic power, frequency range 10KHz-60KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573028.5U CN203509259U (en) | 2013-09-16 | 2013-09-16 | Ultrasonic vibration micro electric spark machining working table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573028.5U CN203509259U (en) | 2013-09-16 | 2013-09-16 | Ultrasonic vibration micro electric spark machining working table |
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| Publication Number | Publication Date |
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| CN203509259U true CN203509259U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320573028.5U Expired - Fee Related CN203509259U (en) | 2013-09-16 | 2013-09-16 | Ultrasonic vibration micro electric spark machining working table |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480928A (en) * | 2013-09-16 | 2014-01-01 | 山东大学 | Ultrasonic-vibration micro electric discharge machining workbench |
| CN104842029A (en) * | 2015-04-17 | 2015-08-19 | 首都航天机械公司 | Workpiece additional ultrasonic vibration device for ultrasonic electrical discharge machining |
| CN107378156A (en) * | 2017-09-12 | 2017-11-24 | 天津科技大学 | Double non-contact rotary ultrasonic edm Machining Systems |
| CN107716257A (en) * | 2017-11-16 | 2018-02-23 | 山东品创机械设备有限公司 | A kind of piezoelectric ceramic vibration source and the lathe and industrial robot using the vibration source |
| CN107900474A (en) * | 2017-10-23 | 2018-04-13 | 四川大学 | A kind of insulation system for ultrasonic edm processing |
| CN110052679A (en) * | 2019-04-22 | 2019-07-26 | 西安航天发动机有限公司 | A kind of profound and subtle hole ultrasound auxiliary electric spark system of processing based on fliud flushing in main shaft |
-
2013
- 2013-09-16 CN CN201320573028.5U patent/CN203509259U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480928A (en) * | 2013-09-16 | 2014-01-01 | 山东大学 | Ultrasonic-vibration micro electric discharge machining workbench |
| CN104842029A (en) * | 2015-04-17 | 2015-08-19 | 首都航天机械公司 | Workpiece additional ultrasonic vibration device for ultrasonic electrical discharge machining |
| CN107378156A (en) * | 2017-09-12 | 2017-11-24 | 天津科技大学 | Double non-contact rotary ultrasonic edm Machining Systems |
| CN107378156B (en) * | 2017-09-12 | 2023-05-26 | 天津科技大学 | Double non-contact rotary ultrasonic electric spark composite processing system |
| CN107900474A (en) * | 2017-10-23 | 2018-04-13 | 四川大学 | A kind of insulation system for ultrasonic edm processing |
| CN107716257A (en) * | 2017-11-16 | 2018-02-23 | 山东品创机械设备有限公司 | A kind of piezoelectric ceramic vibration source and the lathe and industrial robot using the vibration source |
| CN110052679A (en) * | 2019-04-22 | 2019-07-26 | 西安航天发动机有限公司 | A kind of profound and subtle hole ultrasound auxiliary electric spark system of processing based on fliud flushing in main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20170916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |